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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,56 +1,86 @@ | ||
| const express = require('express'); | ||
| const mongoose = require('mongoose'); | ||
| const fetch = require('node-fetch'); | ||
|
|
||
| const app = express(); | ||
| // Puerto en el que escuchará el servicio | ||
| const port = 8005; | ||
| const port = 8005; | ||
|
|
||
| // Middleware to parse JSON in request body | ||
| app.use(express.json()); | ||
|
|
||
| // Connect to MongoDB | ||
| const mongoUri = process.env.MONGODB_URI || 'mongodb://localhost:27017/userdb'; | ||
| mongoose.connect(mongoUri); | ||
| // It will be the country of the question | ||
| var country= ""; | ||
| // It will be the correct capital of the question | ||
| var capitalCorrect = ""; | ||
| // It will be the different options for the answers | ||
| var capitalOptions = []; | ||
|
|
||
| // Recieves the information of the query and select wich data use on the question (country and capitals) | ||
| function getQuestionInfo(info){ | ||
| capitalOptions = []; | ||
| fourRows = []; | ||
| const numEles = info.length; | ||
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| app.post('/createquestion', async (req, res) => { | ||
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| // TODO LO COMENTADO ES UN INTENTO DE HACER LAS QUERIES | ||
| // PERO COMO SALTA UN ERROR ANTES, NO SE PRUEBA CON ELLAS | ||
| // Select 4 random rows of the data | ||
| for (let i = 0; i<4; i++){ | ||
| var indexRow = Math.floor(Math.random() * numEles); | ||
| fourRows.push(info[indexRow]); | ||
| // Store the 4 posible answers | ||
| capitalOptions.push(info[indexRow].capitalLabel.value); | ||
| } | ||
|
|
||
| // Select the row where it will extract the country and capital | ||
| const indexQuestion = Math.floor(Math.random() * 4); | ||
| // Store the country choosen and its capital | ||
| country=fourRows[indexQuestion].countryLabel.value; | ||
| capitalCorrect = fourRows[indexQuestion].capitalLabel.value; | ||
| } | ||
|
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| app.post('/createquestion', async (req, res) => { | ||
| const sparqlQuery = 'SELECT DISTINCT ?country ?countryLabel ?capital ?capitalLabel WHERE { ?country wdt:P31 wd:Q6256. ?country wdt:P36 ?capital. SERVICE wikibase:label {bd:serviceParam wikibase:language "[AUTO_LANGUAGE],es".}}'; | ||
| const apiUrl = `https://query.wikidata.org/sparql?query=${encodeURIComponent(sparqlQuery)}`; | ||
| const headers = { "Accept": "application/json" }; | ||
|
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| const apiUrl = `https://query.wikidata.org/sparql?query=${encodeURIComponent(sparqlQuery)}&format=json`; | ||
|
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||
| try { | ||
| const respuestaWikidata = await fetch(apiUrl, {headers}); | ||
| console.log(respuestaWikidata); | ||
| if (respuestaWikidata.ok) { | ||
| console.log('Entro al if'); | ||
| const data = await respuestaWikidata.json();//obtengo los datos en json | ||
| const numEles = data.results.bindings.length; | ||
| const index = Math.floor(Math.random() * numEles);//index al azar | ||
|
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||
| res = data.results.bindings[index]; | ||
| // Hardcodeo el resultado para hacer pruebas | ||
| // res.json({ token: 'asdf'}); | ||
| }else{ | ||
| console.log('no entra al if'); | ||
| console.log('la peticion tiene un status:' ,respuestaWikidata.status); | ||
|
|
||
| // Makes the petition to the url | ||
| const response = await fetch(apiUrl, { | ||
| headers: { | ||
| 'Accept': 'application/json' | ||
| } | ||
| }); | ||
|
|
||
| // Check if everything was good on the petition | ||
| if (!response.ok) { | ||
| console.error('Error al realizar la consulta a Wikidata:', response.statusText); | ||
| return; | ||
| } | ||
|
|
||
| // Parse the response | ||
| const data = await response.json(); | ||
|
|
||
| // Send the parsed response to be selected | ||
| getQuestionInfo(data.results.bindings); | ||
|
|
||
| // Declare what will be return | ||
| solution = { | ||
| responseCountry : country, | ||
| responseCapitalCorrect : capitalCorrect, | ||
| responseCapitalOptions : capitalOptions | ||
| }; | ||
|
|
||
| // Return the resoult with a 200 status | ||
| res.status(200).json(solution); | ||
| } catch (error) { | ||
| console.error('Error al realizar la consulta:', error); | ||
| res.status(500).json({ error: 'Internal Server Error' }); | ||
| } | ||
| }); | ||
|
|
||
| // Start the server | ||
| const server = app.listen(port, () => { | ||
| console.log(`Creation Service listening at http://localhost:${port}`); | ||
| }); | ||
|
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||
| server.on('close', () => { | ||
| // Close the Mongoose connection | ||
| mongoose.connection.close(); | ||
| }); | ||
| mongoose.connection.close(); | ||
| }); | ||
|
|
||
| module.exports = server | ||
| module.exports = server; |
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